Every practitioner meets the case where the thing that would settle the question does not exist. Sometimes it never did, sometimes it was destroyed on a retention schedule, and occasionally it was destroyed by the person it would have hurt. None of those is the end of the matter, but each calls for a different response, and the worst of the available responses is to say nothing about the gap at all. This subject sets out secondary evidence and its rules, how a record is reconstructed from fragments, and what a decision-maker does with evidence somebody made disappear.
Delay affects evidence unevenly. Volatile electronic material is overwritten within weeks, institutional records survive for defined retention periods, and public registers persist for decades. Memory declines continuously while confidence does not, which is why late accounts can be both detailed and unreliable. Knowing the decay rates determines what to secure first.
Evidence problems are usually created long before anybody anticipates a dispute. Keeping originals, documenting arrangements when they are made, using traceable payments, obtaining records while institutions still hold them and writing brief contemporaneous notes prevent most of the difficulties that later require reconstruction, secondary evidence or explanation.
Where an opponent destroyed evidence after a duty to preserve arose, remedies including inferences, exclusions and sanctions become available. Where a third party or an accident destroyed it, the secondary evidence route applies instead. In every case the first task is proving what the material was, that it existed and that it is genuinely gone.
Spoliation is the destruction or alteration of evidence after an obligation to preserve it has arisen. The consequences range from an adverse inference through evidential exclusions to determinative sanctions, and they depend on when the duty attached, whether the loss was deliberate and how much prejudice resulted. Routine destruction before the duty arose is generally not spoliation at all.
Where primary evidence cannot be obtained, the obligation to establish the fact remains. The route through begins with proving that the material is genuinely unavailable, and continues with secondary documents, circumstantial support and statements from people with knowledge. Files fail when they skip the first step and simply offer substitutes without explaining why.
Reconstruction assembles a lost record from surviving fragments and related documents held elsewhere. It works where each element is sourced, where the reasoning between them is visible, and where remaining gaps are identified rather than smoothed over. A reconstruction presented as a clean document is worth much less than one that shows how it was built.
A chain of small facts establishes a proposition through the combined effect of items that would each be insufficient alone. Its strength depends on the independence of the items, on each being properly established, and on the whole set being difficult to explain otherwise. Assembled carelessly it is a pile of material; assembled deliberately it is frequently decisive.
A request for additional time to obtain evidence succeeds when it identifies the specific material sought, explains what steps have already been taken, states why the delay was unavoidable and proposes a realistic date. Requests that are general, late or repeated without progress are refused, and the refusal is frequently harder to recover from than the original gap.
Secondary evidence is proof of a document's contents offered where the document itself cannot be produced. Most systems require the party to establish that the original is genuinely unavailable and that the unavailability was not their own fault. Once admitted, secondary evidence is weighed like anything else, and its quality varies enormously between a certified copy and a recollection.
Circumstantial evidence establishes a fact by inference rather than by direct observation. It is not inherently weaker than direct evidence, and a set of independent circumstances pointing the same way is frequently more difficult to displace than a single account. What matters is the strength of each inference and the independence of the items.
Where a determination is made without material that later arrives, several routes may be available: review, reopening, reconsideration or a fresh application. Which one applies turns on whether the material is genuinely new, whether reasonable diligence would have produced it earlier, and whether it would have changed the outcome. Time limits are usually short.
Gaps in evidence are ordinary, and how they are handled determines their effect. A gap identified in the filing, explained plainly and supported by whatever material exists, is assessed as one feature among many. The same gap discovered by a reader raises questions about everything else, and answering it afterwards happens on much worse terms.
